SheepIt upload warning, Files not found
I use sheepit too!
This error comes up when you are missing image files, caches, or other external sources which are required in the rendering process. In this case, I would check the box in Blender under File &gt; External Files &gt; Automatically pack into .blend.
This should do the trick.
If not, then you would have to take the image files and pack the into a .zip file with the blender file. You would have to make sure that the image directory in Blender for the images is set to local in the file, so that it would find it on any computer. (Which is how sheepit works.)